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IN74HC139A

Part Number	IN74HC139A
Manufacturer	IK Semiconductor
Description	Dual 2-4 Decoder/Demultiplexer
Published	Dec 7, 2005
Detailed Description	TECHNICAL DATA IN74HC139A Dual 1-of-4 Decoder/Demultiplexer The IN74HC139A is identical in pinout to the LS/ALS139. T...
Datasheet	IN74HC139A PDF File

Overview

TECHNICAL DATA IN74HC139A Dual 1-of-4 Decoder/Demultiplexer The IN74HC139A is identical in pinout to the LS/ALS139.
The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LS/ALSTTL outputs.
This device consists of two independent 1-of-4 decoders, each of which decodes a two-bit Address to one-of-four active-low outputs.
Active-low Selects are provided to facilitate the demultiplexing and cascading functions.
The demultiplexing function is accomplished by using the Address inputs to select the desired device output, and utilizing the Select as a data input.
• Outputs Directly Interface to CMOS, NMOS, and TTL • Operating Voltage Range: 2...

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